<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>图片查看</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            background: #000;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            font-family: HarmonyOS Sans;
            position: relative;
        }

        .back-button {
            position: fixed;
            top: 20px;
            left: 20px;
            background-color: rgba(255, 255, 255, 0.9);
            color: #333;
            border: none;
            padding: 10px 20px;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
            z-index: 1000;
            transition: all 0.3s ease;
            box-shadow: 0 2px 10px rgba(0,0,0,0.3);
        }

        .back-button:hover {
            background-color: rgba(255, 255, 255, 1);
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(0,0,0,0.4);
        }

        .image-container {
            text-align: center;
            padding: 20px;
        }

        img {
            max-width: 90%;
            max-height: 85vh;
            box-shadow: 0 8px 30px rgba(0,0,0,0.5);
            border-radius: 8px;
        }

        .image-title {
            color: white;
            margin-top: 15px;
            font-size: 18px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.5);
        }
    </style>
</head>
<body>
<button class="back-button" method ="POST" onclick="history.back()">← 返回</button>

<div class="image-container">
    <img src="picture.png" alt="picture">
    <div class="image-title">picture.png</div>
</div>
</body>
</html>